Stick-shaped cosmetic

Abstract

To provide a stick-shaped cosmetic capable of further reducing residual air bubbles generated during mold filling, and having a three dimensional pattern with higher aesthetic appearance.SOLUTION: The present invention can provide a stick-shaped cosmetic having a single or a plurality of protruding three dimensional patterns protruding from a surface, wherein the protruding three dimensional pattern has a linear groove between a protrusion and a protrusion.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a stick-type cosmetic product and the like. [Background technology]

[0002] Some stick-type cosmetics such as stick-type lipsticks have a partially textured pattern on the surface to enhance the aesthetic appearance and to add design value to the surface.

[0003] For example, Patent Document 1 proposes a solid cosmetic product contained in a cosmetic container, characterized in that a pattern is formed on the surface by laser light irradiation. Also, for example, Patent Document 2 proposes forming a metal tap for forming a hollow ogive made of a malleable plastic material by laser processing, and producing a lipstick having a shape complementary to the ogive. For example, Patent Document 3 proposes a stick-type cosmetic product in which a ceiling or linear protrusions forming a continuous uneven pattern are provided over at least the entire tip portion of the surface of the stick. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2000-247832 [Patent Document 2] Special Publication No. 2021-531079 [Patent Document 3] Japanese Patent Application Laid-Open No. 2008-156304 Summary of the Invention [Problem to be solved by the invention]

[0005] The present inventors believed that the lipstick described in Patent Document 1 merely has shallow grooves or letters engraved on the outer peripheral surface by a laser, and therefore cannot be said to have a highly aesthetic appearance. The present inventors also believed that the lipstick described in Patent Document 2 merely has a shallowly engraved pattern on the outer peripheral surface that is a monotonous repetition of straight lines, and therefore cannot be said to have a highly aesthetic appearance. The present inventors also believed that the lipstick described in Patent Document 3 is a stick-type cosmetic product in which a large number of columnar dot-like protrusions are formed in the shape of blocks on the outer peripheral surface to provide an excellent feel when applied, and therefore cannot be said to have a highly aesthetic appearance. A primary object of the present invention is to provide a stick-type cosmetic product that can further reduce the amount of residual air bubbles that occur during mold filling and that has a three-dimensional pattern with a more aesthetically pleasing appearance. [Means for solving the problem]

[0006] As a result of extensive research into solving the above-mentioned problems, the inventors have found that the problems can be solved by using a specific three-dimensional pattern, and have thus completed the present invention.

[0007] The present invention has one or more convex three-dimensional patterns that protrude above a surface height reference line, the protruding three-dimensional pattern has one or more linear grooves, The linear grooves are present between adjacent convex portions. To provide a stick-type cosmetic product. The stick-type cosmetic preparation comprises the following components (A) and (B): (A) Oily gelling agent (B) An oil solution that is liquid at 25°C. It may have at least the following.

[0008] It is preferable that the ratio of the depth of the linear groove to the height of one convex portion adjacent to the linear groove that protrudes above the surface height reference line, i.e., [depth of linear groove] / [height of one convex portion adjacent to linear groove], is 50 to 150%. The linear direction of the linear grooves may include a portion that is not parallel to the longitudinal direction of the stick-type cosmetic when viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic. The stick-type cosmetic preparation may have a hardness of 300 N to 1500 N at 35°C. The stick-type cosmetic preparation may have a melt viscosity of 1 to 1000 mPa·s at 100°C. The component (A) may contain a wax and / or an amino acid-based gelling agent. The component (B) may contain a silicone oil. The silicone oil may be dimethylpolysiloxane. The kinematic viscosity (25°C) of the silicone oil may be 6 to 1000 mm 2 The content of the silicone oil in the stick-type cosmetic preparation may be 0.1 to 5% by mass. [Effects of the Invention]

[0009] The present invention can further reduce the amount of residual air bubbles that occur during mold filling, and can provide a stick-shaped cosmetic preparation having a raised three-dimensional pattern with a more aesthetically pleasing appearance. [Brief explanation of the drawings]

[0010] [Figure 1]

[0023] Figure 1 shows an example of the appearance of a stick-type cosmetic according to the present embodiment, as viewed from the front. It is also a diagram of a stick-type lipstick that passed the tests for lack of residual bubbles and high aesthetic appearance in Example 2, with the tip of the lipstick facing upward, viewed from a certain direction. The surface of the stick-type cosmetic has multiple raised three-dimensional patterns, and enlarged views of raised three-dimensional patterns (upper, middle, and lower portions) of different sizes and shapes are shown on the right. [Figure 2]

[0033] Figure 1 shows the cross-sectional shape of the convex portions and linear grooves when a portion of the raised three-dimensional pattern in a stick-type cosmetic product according to one embodiment is cross-sectioned perpendicular to the surface. The dashed line designated D indicates the depth of the linear groove. The dashed line designated SL indicates the position of the surface height reference line. The top diagram (plus sign) shows a state in which the depth of the linear groove is shallower than the surface height reference line (0 mm). The middle diagram (plus sign zero: not shown) shows a state in which the depth of the linear groove is at the same position as the surface height reference line (0 mm). The right diagram (minus sign) shows a state in which the depth of the linear groove is deeper than the surface height reference line (0 mm). [Figure 3] 1 is a conceptual diagram showing the angle formed by the longitudinal direction of the cosmetic (reference: 0 degrees) and the linear direction of the linear grooves provided in the protruding three-dimensional pattern when the top surface of one protruding three-dimensional pattern in a stick-type cosmetic according to one embodiment is viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic. The angle lines in the diagram are conceptual diagrams provided for convenience, and the angle of the angle lines in the diagram should not be considered as a limitation when measuring or setting actual angles. [Figure 4] 1 is a schematic diagram showing the flow of the fluidized cosmetic composition during filling and the remaining air bubbles generated during filling entering and escaping from the recesses in the mold. FIG. [Figure 5] FIG. 10 is a diagram showing the positional relationship between the filling direction and a protrusion (a linear groove mold) provided on one concave three-dimensional pattern (a convex three-dimensional model mold) provided on the mold surface in this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] Preferred embodiments for implementing the present technology will be described below. Note that the embodiment described below shows an example of a typical embodiment of the present technology, and the scope of the present technology will not be interpreted narrowly by this. Note that in this specification, percentages are expressed by mass unless otherwise specified, and mass% will be referred to as "%" hereinafter. Also, in this specification, when a numerical range is expressed using "to", the range is intended to include both end values. Furthermore, the upper limit value (or less) and the lower limit value (or more) of each numerical range (to) can be arbitrarily combined as desired.

[0012] 1. Background to the study of stick-type cosmetics related to this technology

[0013] The present inventors first investigated the use of a rubber mold to provide a convex shape that protrudes from the surface of a stick-type cosmetic product, creating a step with the surface, in order to provide a three-dimensional, convex shape on the surface of the stick-type cosmetic product.

[0014] The present inventors believed that when this rubber mold is used to produce a stick-type lipstick, for example, by a press-on lipstick filling method, when the liquefied cosmetic composition is filled into the mold from the filling direction, the liquid cosmetic composition will be filled while entraining air and will quickly solidify, and therefore the cosmetic composition will solidify in a state where the air cannot escape completely inside the recessed mold used to form the convex shape and remains trapped inside.For this reason, the present inventors believed that when the surface of the formed stick-type cosmetic product is examined, many traces of remaining air bubbles will be found on the convex surface, impairing the aesthetic appearance of the convex shape.

[0015] The inventors of the present invention considered increasing the filling speed and mold temperature in order to eliminate or significantly reduce the generation of residual air bubbles during mold filling, and therefore investigated changes in the filling speed and mold temperature when filling the mold. However, even when these filling speed and mold temperature were changed, many residual air bubbles remained in the recessed molds that were used to form the convex shapes within the mold, and after solidification, residual air bubbles occurred on the surfaces of the convex shapes, and the aesthetic appearance of this three-dimensional pattern was not very good.

[0016] Therefore, the present inventors have conducted extensive research with the main objective of providing a stick-type cosmetic preparation that can further reduce the amount of residual air bubbles that occur during mold filling and has a convex shape with a more aesthetically pleasing appearance. The present inventors then discovered that the first embodiment, the second embodiment, the third embodiment, or a combination thereof, which will be described later, can further reduce the amount of residual air bubbles that occur during mold filling, and can provide a stick-type cosmetic preparation having a convex shape with a more aesthetically pleasing appearance, and thus completed the present technology.

[0017] In the present technology, the convex three-dimensional shape may be a convex three-dimensional pattern, and by employing a convex three-dimensional pattern, it is possible to produce a stick-type cosmetic product with a more aesthetic appearance and a more three-dimensional or relief-like feel. In this specification, the term "relief feeling" means that the surface feels like a relief when viewed; that the surface has a three-dimensional feel; that a three-dimensional shape protrudes from the surface; and the like, and may mean a combination of two or more of these.

[0018] <First to third embodiments of the present technology> Below, details of the stick-type cosmetic product (protruding three-dimensional pattern) according to the first embodiment, the stick-type cosmetic product (composition) according to the second embodiment, and the stick-type cosmetic product (physical properties) according to the third embodiment will be described.

[0019] 1-1. Stick-type cosmetic preparation (protruding three-dimensional pattern) according to the first embodiment The first embodiment can provide a stick-type cosmetic having one or more "protruding three-dimensional patterns" that protrude above the "surface height reference line," and the protruding three-dimensional patterns have one or more "linear grooves," which are present between convex portions.

[0020] The convex three-dimensional pattern may have one or more "structures having linear grooves" between convex portions, and the convex three-dimensional pattern may be composed of one or more structures having linear grooves between convex portions. The structure having linear grooves may be a region having the linear groove. The convex three-dimensional pattern may also be composed of two or more convex portions and one or more single or multiple linear grooves. In this way, the first embodiment can have one or more convex three-dimensional patterns with a three-dimensional feel and a highly aesthetic appearance protruding from the surface of the stick-type cosmetic. The stick-type cosmetic further reduces residual air bubbles that occur during mold filling and has a convex three-dimensional pattern with a more aesthetic appearance. The convex three-dimensional pattern may be a convex shape or a three-dimensional convex shape.

[0021] Each wording will be explained in detail below. <Direction perpendicular to the longitudinal direction of the stick-type cosmetic product> In this specification, "viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic" means when the longitudinal direction of the stick-type cosmetic is set as the up-and-down direction, and the stick-type cosmetic is viewed from a direction perpendicular to the longitudinal direction of the side surface of the stick-type cosmetic, with the stick-type cosmetic at the center. This may also be when the part to be applied to the lips, etc., is set as the upward direction.

[0022] <Surface height reference line> In this specification, the surface that serves as the "surface height reference" in a stick-type cosmetic product refers to the surface of an area that does not have any convex or concave portions, such as a convex three-dimensional pattern (hereinafter also referred to as the "surface"), and it is more preferable that this surface is a surface on which no convex three-dimensional pattern protrudes. It is preferable that the height of this surface is taken as the reference (0 mm), and it is desirable that this surface be taken as the base surface, and that the line based on the height of this surface (base surface) be taken as the "surface height reference line."

[0023] <Top surface of the convex part> In this specification, the surface of a convex three-dimensional pattern or the surface of a convex portion present in a convex three-dimensional pattern when viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic product is referred to as the "upper surface of the convex three-dimensional pattern" or the "upper surface of a convex portion."

[0024] <Height of the convex part> In this specification, the height of the convex portion from the surface height reference line refers to the height from the surface height reference line to the upper surface of the convex portion, but it may also refer to the total height up to the upper surface. In this specification, the surface height reference line may be set to a height of 0 mm, and may be used as a relative height reference, such as "a convex three-dimensional pattern protruding 1 mm from the surface height reference line (0 mm)" (see Figure 2). The surface height reference line is preferably set at a position perpendicular to the longitudinal central axis of the stick-type cosmetic product, at the same height as the surface of the stick-type cosmetic product. In this specification, the direction of "height" refers to a direction above the surface height reference line and perpendicular to the central axis in the longitudinal direction of the stick-type cosmetic.

[0025] When the height of a convex portion is not constant within a single convex portion, the height of the tallest convex portion is given priority. Although the higher the convex portion, the more likely it is that the more air bubbles will remain, this first embodiment has the advantage of being able to more effectively reduce the amount of air bubbles remaining.

[0026] The height of the convex portion used in this first embodiment is not particularly limited, but a suitable lower limit is preferably 0.05 mm or more, more preferably 0.1 mm or more, and even more preferably 0.15 mm or more, and a suitable upper limit is preferably 0.5 mm or less, more preferably 0.3 mm or less, and even more preferably 0.25 mm or less, and the suitable numerical range is preferably 0.05 to 0.5 mm, more preferably 0.1 to 0.3 mm, and even more preferably 0.15 to 0.25 mm.

[0027] <Width of the convex part> In this specification, the "width of a convex portion" is not particularly limited, but is the width of the length in the short side direction of the convex portion when viewed from the top surface of the convex portion.

[0028] The width of the convex portion used in this first embodiment is not particularly limited, but a suitable lower limit is preferably 0.1 mm or more, more preferably 0.5 mm or more, and even more preferably 0.8 mm or more, and a suitable upper limit is preferably 5 mm or less, more preferably 4 mm or less, and even more preferably 3 mm or less, and the suitable numerical range is more preferably 0.1 to 5 mm, more preferably 0.5 to 4 mm, and even more preferably 0.5 to 3 mm. The width of the convex portion may be the maximum length in the short direction.

[0029] <Length of the convex part or total length> In this specification, the "length or total length of the convex portion" is not particularly limited, but may be the length in the longitudinal direction of the convex portion when viewed from the top surface of the convex portion, or the length from the start point to the end point along the contour of the convex portion in the longitudinal direction of the convex portion when viewed from the top surface of the convex portion. For example, if the convex portion forms a ring when viewed from the top surface of the convex portion, the "length or total length of the convex portion" may be the start and end of the ring at the same position. For example, if multiple convex portions are combined when viewed from the top surface of the convex portion, the "length or total length of the convex portion" may be the length from the start point to the end point of each individual convex portion.

[0030] <Convex part> The convex portions may be provided in the convex three-dimensional pattern, and each convex portion may be disposed adjacent to one linear groove, which will be described later. The outer peripheral shape or contour of the upper surface of one of the convex portions when the surface of the stick-type cosmetic is viewed from a certain direction is not particularly limited, and examples thereof include petal-shaped, floral, polygonal (square, rectangular, etc.), and elliptical (horizontally or vertically elongated elliptical, perfect circle, etc.). The polygonal shape may include rectangular, parallelogram, trapezoid, regular polygonal, rounded polygonal, tapered, etc. Furthermore, the outer peripheral shape or contour of one side surface of one of the convex portions when the surface of the stick-type cosmetic is viewed from a certain direction can also appropriately adopt the shapes described above.

[0031] The surface irregularities of the upper surfaces of the convex portions when the stick-type cosmetic is viewed from a certain direction are not particularly limited, and may be one or more selected from convex, concave, and flat surfaces. The corners of the upper surfaces of the convex portions may be chamfered (e.g., C-chamfered, R-chamfered, or light-chamfered), and for example, the corners adjacent to the linear grooves and / or the corners not adjacent to the linear grooves may be chamfered.

[0032] When the stick-type cosmetic is viewed from a certain direction, the convex portions may be separated by their respective contours, or may be separated by linear grooves as described below, or may be separated by a combination of these. Furthermore, when a convex portion is separated by linear grooves, each of these separated portions may be referred to as a separated convex portion.

[0033] <Linear groove> The linear grooves provided in the convex three-dimensional pattern are preferably linear when the stick-type cosmetic is viewed from a certain direction, but the linear shape is not limited to long lines and may be short lines. In this first embodiment, there is an advantage that even if the linear grooves are long, the amount of residual air bubbles can be reduced, and the possibility of long lines makes it possible to select aesthetically complex patterns or large patterns.

[0034] The linear grooves may be straight and / or curved, or a combination thereof. When the stick-type cosmetic product is viewed from a certain direction, the linear grooves may be a single-stroke line, i.e., a curved line extending from the starting point to the end point without any intersecting points. Examples of the linear grooves include lines extending from the center outward or from the outside toward the center, and radially dispersed lines. Compound lines formed by combining multiple linear grooves are not particularly limited, and examples include tree-like, lattice-like, and radial lines. Complex combinations of compound lines, such as a combination of a circumference and multiple radial lines extending outward from the circumference, a triangular or inverted triangular shape, or multiple tree-like shapes extending outward from the center, are also possible (see, for example, FIG. 1 ). The first embodiment has the advantage of reducing the amount of residual air bubbles, even when complex combinations of linear grooves are used to create a three-dimensional pattern with a highly aesthetic appearance.

[0035] The linear grooves preferably exist adjacent to and between convex portions when the stick-type cosmetic is viewed from a certain direction. Furthermore, by combining a plurality of linear grooves, the contours of the convex portions can be made more complex. For example, depending on the contours of the linear grooves, the contours of the convex portions can be made polygonal (e.g., star-shaped, hexagonal, etc.) or curved (e.g., heart-shaped, petal-shaped, oblong, etc.). Shapes such as those described above in the "Cross-sectional shape of the periphery of the stick-type cosmetic" (e.g., polygonal and annular examples) can also be appropriately adopted.

[0036] <Linear direction of linear grooves> When the stick-type cosmetic is viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic, the linear direction of the linear grooves may have a portion that is arranged in the same direction as the longitudinal direction (i.e., parallel). However, the linear grooves may have a portion that is arranged non-parallel to the longitudinal direction. Non-parallel to the longitudinal direction can include directions other than 0 degrees, where the longitudinal direction is defined as 0 degrees. When a linear groove is located above the longitudinal direction, the angle between the linear direction of the linear groove and the longitudinal direction can be set to 90 degrees counterclockwise or 90 degrees clockwise from the upward direction; when a linear groove is located below the longitudinal direction, the angle between the linear direction of the linear groove and the longitudinal direction can be set to 90 degrees counterclockwise or 90 degrees clockwise from the downward direction. Note that the term "portion" may also be used to refer to a "region."

[0037] In this specification, the "angle of the linear direction of the linear grooves" refers to the angle between the linear direction of the linear grooves relative to the longitudinal direction of the obtained cylindrical lipstick and the longitudinal direction (0 degrees) (see, for example, Figure 3). The larger the angle of non-parallelism with respect to the longitudinal direction, particularly at 90 degrees, the more difficult it becomes to ensure a path for air bubbles remaining during filling to escape, making it more difficult to reduce the amount of remaining air bubbles, but this has the advantage of increasing the degree of freedom in the pattern and improving the aesthetic appearance. In this first embodiment, even when the linear grooves are included in the range of non-parallelism, it is possible to effectively reduce the amount of remaining air bubbles.

[0038] The linear direction of the linear grooves used in this first embodiment can be non-parallel to the longitudinal direction, with a suitable lower limit of preferably 30 degrees or more, more preferably 40 degrees or more, and even more preferably 50 degrees or more, and an upper limit of 90 degrees or less, and the suitable numerical range is more preferably 40 degrees or more or 50 degrees or more but 90 degrees or less.

[0039] In this first embodiment, unless otherwise specified, when the linear groove has a linear portion or region that is angled at 40 degrees or 50 degrees or more and 90 degrees or less relative to the longitudinal direction, this does not exclude the linear groove being angled at 0 degrees or more, 40 degrees or less, or 50 degrees or less, but means that at least a portion of the linear groove is within the range of at least 40 degrees or 50 degrees or more and 90 degrees or less.

[0040] Furthermore, when the stick-type cosmetic is viewed from a certain direction, the linear grooves can be arranged parallel or non-parallel to the longitudinal direction of the stick-type cosmetic, and even when arranged non-parallel (more specifically, at 90 degrees to the left or right), there is the advantage that residual air bubbles can be reduced, and since the 90-degree direction can also be used, any linear shape can be arranged, which can further improve the aesthetic appearance. Furthermore, this also allows the lines to include curved shapes, which have a highly aesthetic appearance, and it is also possible to obtain a convex three-dimensional pattern with curves, which has a highly aesthetic appearance. It is also preferable that one end of the linear groove is connected to a space on the surface outside the outline of the protruding three-dimensional pattern.

[0041] In the preferred first embodiment, as described above, the linear grooves can be any linear shape, and therefore the portion or region that includes at least the linear shape of the linear grooves can be a portion or region that is arranged non-parallel to the longitudinal direction of the stick-type cosmetic when the stick-type cosmetic is viewed from a certain direction.

[0042] <Linear groove depth> Furthermore, in this specification, the "depth of a linear groove" may refer to the depth from the top surface of the linear groove to the bottom of the groove when there is no groove between adjacent convex portions. The "depth of a linear groove" may also refer to the depth from the top surface of adjacent convex portions to the bottom of the groove formed by the linear groove. Therefore, when two adjacent convex portions have different heights, the depth of the linear groove may be calculated and discussed for each adjacent convex portion in the same linear groove. Furthermore, when there are multiple convex portions and adjacent linear grooves exist between each convex portion, the depths of these linear grooves may be the same or different. Furthermore, the depths of the linear grooves may be the same or different from the starting end to the ending end. When the depths of the linear grooves differ, they may be within the preferred range of linear groove depths described below.

[0043] The depth of the linear grooves in the first embodiment is not particularly limited, and may be adjusted to be deep so as to be below the surface height reference line or shallow so as to be above the reference line, and is preferably shallow so as to be above the surface height reference line. If the groove bottom of the linear groove is made deep, it may be located inward from the surface height reference line (e.g., inward toward the center), or if the groove bottom of the linear groove is made shallow, it may be located outward from the surface height reference line (e.g., outward from the center).

[0044] The depth of the linear groove used in this first embodiment is not particularly limited, but a suitable lower limit is, for example, 0.1 mm or more, more preferably 0.15 mm or more, and even more preferably 0.2 mm or more. Also, a suitable upper limit is not particularly limited, and although it is possible to make it deeper than a predetermined surface height reference line, it is preferably shallower than the predetermined surface height reference line, and is preferably 0.5 mm or less, more preferably 0.4 mm or less, and even more preferably 0.3 mm or less.

[0045] <Linear groove length> Furthermore, in this specification, the "length of the linear groove" (also referred to as "linear length") may be the length from the start point to the end point of the linear groove when viewing the top surface of the convex three-dimensional pattern, and when the linear groove forms a ring, the start point and end point of the ring may be in the same position, and when multiple linear grooves intersect or combine, the length of each individual linear groove from the point of intersection is considered.

[0046] The linear length of the linear groove used in this first embodiment is not particularly limited, but a suitable lower limit is preferably 0.1 mm or more, more preferably 0.2 mm or more, and even more preferably 0.5 mm or more, and a suitable upper limit is not particularly limited and may be the entire circumference of the stick-type cosmetic product or may be continuous in a spiral shape, but is preferably 20 mm or less, more preferably 10 mm or less. This makes it possible to obtain a stick-type cosmetic product with better reduced residual air bubbles and a more aesthetically pleasing appearance.

[0047] <Linear groove width> Furthermore, in this specification, the "width of the linear groove" (also referred to as "groove width") refers to the groove width of the linear groove when viewed from the top, and may be the width between the inner walls of adjacent convex portions, or the length (width) in the short direction of the groove. When the top and bottom surfaces of the groove have gently curved surfaces, it is more preferable to define the groove width at the midpoint of the groove depth as the "width of the linear groove."

[0048] The groove width (inner width) of the linear groove used in this first embodiment is not particularly limited, but a suitable lower limit is preferably 0.1 mm or more, more preferably 0.2 mm or more, more preferably 0.3 mm or more, and more preferably 0.4 mm or more, and a suitable upper limit is preferably 10 mm or less, more preferably 5 mm or less, even more preferably 1 mm or less, and more preferably 0.5 mm or less, with the preferred numerical range being more preferably 0.1 to 5 mm. Furthermore, the groove width of the linear groove can be made narrower or wider than the width of the convex portion adjacent to the linear groove. This makes it possible to obtain a stick-type cosmetic product with better reduced residual air bubbles and a more aesthetically pleasing appearance.

[0049] <Ratio of depth of linear groove to height of one convex part adjacent to the linear groove> In this specification, the "height of one convex portion adjacent to a linear groove" in the ratio [depth of linear groove / height of one convex portion adjacent to a linear groove] is the height from the surface height reference line (0 mm) to the convex portion adjacent to the linear groove. The "depth of linear groove" in this ratio may be defined according to the height of the adjacent convex portion, as described above in <Depth of linear groove on the surface of a cosmetic>. For example, when a linear groove is provided between a first convex portion and a second convex portion, the ratio of "depth of linear groove / height of one convex portion adjacent to the linear groove" can be calculated as "depth of linear groove / height of one first convex portion adjacent to the linear groove" and "depth of linear groove / height of one second convex portion adjacent to the linear groove." When the first convex portion and the second convex portion are the same height, either ratio may be used. When linear grooves have different depths for a single convex portion adjacent to them, linear grooves with a larger value are preferable from the standpoint of aesthetic appearance, such as three-dimensional effect and shading, but from the standpoint of eliminating air bubbles, linear grooves with a smaller value are said to be more likely to overcome this issue.

[0050] The ratio of the depth of the linear groove to the height of a convex portion adjacent to the linear groove [linear groove depth / height of a convex portion adjacent to the linear groove] used in this first embodiment is not particularly limited, but from the viewpoint of improving aesthetic appearance, a suitable upper limit is preferably 150% or less, more preferably 140% or less, even more preferably 130% or less, more preferably 125% or less, more preferably 110% or less, more preferably 100% or less, and more preferably less than 100%. From the viewpoint of reducing residual air bubbles, a suitable lower limit is preferably 5% or more, more preferably 10% or more, even more preferably 20% or more, more preferably 30% or more, more preferably 50% or more, more preferably 60% or more, and more preferably 70% or more. The suitable numerical range is more preferably 150% or less, and more preferably 50% or more but less than 100%. This makes it possible to obtain a stick-type cosmetic product with better reduced residual air bubbles and a more aesthetic appearance.

[0051] Here, the upper diagram in Figure 2 shows a state in which [depth of linear groove / height of one convex portion adjacent to linear groove] is less than 100% (50% or more), the middle diagram shows a state in which [depth of linear groove / height of one convex portion adjacent to linear groove] is 100%, and the lower diagram shows a state in which [depth of linear groove / height of one convex portion adjacent to linear groove] is more than 100% but not more than 150%.

[0052] In a preferred aspect of this first embodiment, the ratio of the depth of the linear groove to the height of the convex portion adjacent to the linear groove that protrudes above the surface height reference line (depth of linear groove / height of convex portion adjacent to linear groove) is preferably 50 to 150%, and more preferably 50% or more and less than 100%. In a preferred aspect of the first embodiment, the linear direction of the linear grooves may include non-parallel portions that are arranged non-parallel to the longitudinal direction when viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic.

[0053] <Convex 3D pattern> A single convex three-dimensional pattern may be a convex three-dimensional pattern that protrudes from the surface, may be a convex shape provided on the surface, or may be a convex three-dimensional pattern that has a step with the surface. From the viewpoint of aesthetic appearance, such as a three-dimensional effect and a sense of shadow, it is preferable for the convex three-dimensional pattern to protrude above the surface height reference line and to have a step between the contour or edge of the three-dimensional pattern and the surface height reference line. The corners of the convex three-dimensional pattern or the corners of its contour may be chamfered. Furthermore, when the convex three-dimensional pattern is formed from multiple convex portions, the heights of the convex portions, the shapes of the upper surfaces of the convex portions, and the three-dimensional shapes of the convex portions may be the same or different.

[0054] Each convex three-dimensional pattern preferably has one or more linear grooves. Furthermore, each convex three-dimensional pattern preferably has one or more linear grooves, and the linear grooves are preferably present between convex portions. Furthermore, each convex three-dimensional pattern preferably is composed of at least multiple convex portions and one or more linear grooves.

[0055] The convex three-dimensional pattern preferably has linear grooves on the upper surfaces of the convex shapes of the three-dimensional pattern (the surfaces of the convex parts when viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic), and the linear shape of the linear grooves has the advantage that the three-dimensional pattern can be visually recognized as a convex three-dimensional pattern with a highly aesthetic appearance, with clear contours and shadows of the three-dimensional pattern. The inclusion of linear grooves in the convex three-dimensional pattern reduces residual air bubbles and improves the aesthetic appearance.

[0056] Preferably, one raised three-dimensional pattern has a structure having linear grooves between raised portions (hereinafter also referred to as "structure having the linear grooves"), and the structure preferably includes two raised portions and one linear groove. The structure may be a region. By employing such a structure or region, it is possible to achieve both a reduction in residual air bubbles and a high level of aesthetic appearance. The structure having the linear grooves may be surrounded by a surface height reference line. For example, when viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic product, if a structure having the linear grooves is defined as a structure having one linear groove adjacent to one convex portion, then a 1.5 structure will have three convex portions and two linear grooves. Furthermore, the structure or region having the linear grooves may be a structure or region that forms a lattice pattern when the surface is viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic product. Furthermore, by combining multiple structures or regions having the linear grooves, which may be the same or different, it is possible to obtain a raised three-dimensional pattern with fewer air bubbles remaining and a more aesthetically pleasing appearance (see, for example, the enlarged view in Figure 1).

[0057] In the first embodiment, by utilizing the configuration having the linear grooves, it is possible to reduce residual air bubbles and achieve a high level of aesthetic appearance even if the convex three-dimensional pattern is complex. This will be explained using the enlarged view at the bottom right of FIG. 1 , which shows an example of a flower shape, which is one example of the convex three-dimensional pattern 1, but the convex three-dimensional pattern used in the present technology is not limited to a flower shape. In the enlarged view at the bottom right, when the surface is viewed from a certain direction, the convex three-dimensional pattern 1 is composed of: (1) one convex petal pattern having linear grooves 3 present between two elongated curved convex portions 2, and consisting of four elongated curved convex portions 2 and three linear grooves 3; (2) a second part: having linear grooves 4 connecting the convex portions of the convex petal pattern with the spaces on the surface between the convex portions of the convex petal pattern, and consisting of a convex petal pattern. (2) Third part: An outer peripheral convex part with a petal pattern, which is composed of six convex parts with a pattern and six linear grooves; (2) Third part: An inner peripheral convex part with a pistil pattern, which has fan-shaped convex parts 2 spreading outward and linear grooves 4 existing between the fan-shaped convex parts 2, and which is composed of six fan-shaped convex parts 2 and six linear grooves 4 between each fan-shaped convex part; (4) Fourth part: Comprised of annular linear grooves 4 existing between the outer peripheral convex part with a petal pattern and the inner peripheral convex part with a pistil pattern.

[0058] Also, briefly explaining the enlarged view in the upper right of Fig. 1, when viewed from a certain direction, the convex three-dimensional pattern is composed of an inner peripheral convex portion, circumferential linear grooves, an intermediate peripheral convex portion composed of linear grooves between convex portions, and an outer peripheral convex portion composed of star-shaped polygonal convex portions and linear grooves arranged radially that connect to the tips (protrusions, acute angles) of the star. Also, briefly explaining the enlarged view in the middle right of Fig. 1, when viewed from a certain direction, the convex three-dimensional pattern is composed of six fan-shaped convex portions arranged radially outward from the periphery of a central circle, and has annular linear grooves on the periphery of the central convex portion, and the annular linear grooves extend outward between the arranged fan-shaped convex portions and connect to the space above the surface.

[0059] In this first embodiment, by appropriately using one or more linear grooves present between the convex portions, or one or more configurations or regions having the linear grooves, it is possible to create a complex pattern with a highly aesthetic appearance and reduce the amount of residual air bubbles. Furthermore, the pattern can also be made to have a three-dimensional or relief-like effect. By using this first embodiment, it is possible to reduce the amount of residual air bubbles, which also allows for greater freedom in the design and size of each convex three-dimensional pattern to be formed on the surface of the stick-type cosmetic product.

[0060] For example, in the first embodiment, when producing a stick-type cosmetic product, various controls are possible for the depth, width, length, and the like of the linear grooves obtained in the convex three-dimensional pattern. Therefore, the convex three-dimensional pattern composed of structures or regions having linear grooves present between the convex portions has the advantage that it is possible to reduce residual air bubbles while improving the aesthetic appearance, for example, by having thinner lines and deeper line irregularities, and also to enhance the sense of three-dimensionality or relief.

[0061] Furthermore, in this first embodiment, the shape of each raised three-dimensional pattern (preferably the outline of the entire pattern) when the stick-type cosmetic is viewed from a certain direction is not particularly limited, and can be freely and appropriately set on the surface. Furthermore, in this first embodiment, one or more types of the same or different patterns and sizes may be freely arranged on the surface. For example, when viewed from a certain direction, the overall shape or outline of a raised three-dimensional pattern is not particularly limited, and examples include a flower shape, a polygonal shape, a ring shape, etc., and shapes such as those described in the above section "Cross-sectional shape around the stick-type cosmetic" (such as polygonal and ring shapes) can also be appropriately adopted. Furthermore, symmetrical shapes such as line symmetry, point symmetry, and rotational symmetry are also possible. At least one of these patterns may be used, or two or more may be appropriately combined.

[0062] The area of ​​the upper surface of one entire three-dimensional pattern (including the surface of the linear grooves) when the stick-type cosmetic is viewed from a certain direction is not particularly limited, but a suitable lower limit is preferably 0.1 mm 2More preferably, 0.25 mm or more 2 More preferably, 1 mm 2 The upper limit of the thickness can be freely increased depending on the total surface area of ​​the stick-type cosmetic product, but is preferably 150 mm 2 Less than or equal to 125mm, preferably 2 Less than 100 mm, more preferably 2 The preferred range of values ​​is 0.25 to 100 mm from the viewpoint of reducing residual bubbles and improving the aesthetic appearance. 2 and large and small patterns within this range can be freely selected. In this specification, "when the stick-type cosmetic is viewed from a certain direction" may also mean "when viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic."

[0063] In this first embodiment, when the stick-type cosmetic is viewed from a certain direction, the area of ​​the top surfaces of all the convex portions in one entire three-dimensional pattern, when the area of ​​the top surface of the entire three-dimensional pattern (including the area of ​​the top surfaces of the linear grooves) is taken as 100%, is not particularly limited and may be freely set within a range of, for example, 1% to 99%. A suitable lower limit is preferably 5%, 10%, 15%, or 20% or more, more preferably 30%, 40%, or 50% or more, and can further be 60%, 70%, 80%, 90%, or 95% or more. From the perspective of the aesthetic appeal of the convex shapes, the above-mentioned suitable lower limit, for example, 20% or more, can be appropriately adopted. A suitable upper limit is preferably 95% or 90% or less, more preferably 80% or less, and even more preferably 70% or less. Within this range, a convex three-dimensional pattern with excellent aesthetics and a three-dimensional feel, such as a relief or sculpture-like appearance protruding or emerging from the surface, is likely to be obtained.

[0064] In the first embodiment, the stick-type cosmetic having a convex three-dimensional pattern shape with linear grooves can further reduce the amount of residual air bubbles that occur during mold filling, and can provide a stick-type cosmetic having a convex three-dimensional pattern with a more aesthetically pleasing appearance.

[0065] The form of the stick-type cosmetic of this first embodiment is not particularly limited, but examples include lip cosmetics such as lipstick, lip gloss, lip treatment, lip balm, and lip base, as well as foundation, concealer, eye color, blush, and spot skin care cosmetics, and one or more of these can be selected, with lip cosmetics being particularly preferred. The formulation is preferably oil-based or water-in-oil, and more preferably oil-based.

[0066] The external shape of the stick-type cosmetic of this first embodiment is not particularly limited, as long as it is stick-shaped. The cross-sectional shape perpendicular to the longitudinal direction of the stick-type cosmetic is not particularly limited, and examples thereof include annular shapes (e.g., circular, elliptical (horizontally or vertically elongated elliptical), regular circular, waisted elongated elliptical, heart-shaped, etc.) and polygonal shapes (triangular, quadrangular, pentagonal, hexagonal, octagonal, etc.). The polygonal shapes may include rectangular, parallelogram, trapezoidal, regular polygonal, and shapes with rounded corners (e.g., rounded polygonal). One or more of these shapes may be used.

[0067] The method for producing the stick-type cosmetic of the first embodiment is not particularly limited, and a general production method can be used, for example, by heating and melting component (A) an oily gelling agent and component (B) an oil agent liquid at 25°C, as well as any oily component, and then uniformly mixing and dispersing any powder or aqueous component, and heating and dissolving the mixture into a container or mold, pouring it into the container, cooling it, and setting it in the container to obtain the product. The stick-type cosmetic of the present technology is preferably produced by a method for producing a rouge-type product using a mold.

[0068] The stick-type cosmetic preparation of the first embodiment can appropriately adopt the technical features relating to the composition of the second embodiment and the physical properties of the third embodiment, which will be described later. For example, the composition of the first embodiment can be one that contains at least component (A) an oily gelling agent (preferably a wax or amino acid-based gelling agent) and (B) an oily agent that is liquid at 25° C. Furthermore, for example, the physical properties of the stick-type cosmetic preparation of the first embodiment can be such that the hardness at 35° C. is 300 N to 1500 N and / or the melt viscosity at 100° C. is 1 to 1000 mPa s.

[0069] 1-2. Stick-type cosmetic preparation (composition) according to the second embodiment The second embodiment can provide a stick-type cosmetic preparation comprising at least the following components (A) and (B): (A) an oily gelling agent (preferably a wax or an amino acid-based gelling agent) and (B) an oily agent that is liquid at 25° C. Furthermore, from the viewpoint of reducing residual air bubbles, it is preferable that component (B) contains silicone oil.

[0070] In a preferred aspect of the second embodiment, the physical properties of the stick-type cosmetic or the physical properties of the cosmetic composition are adjusted to a suitable range, from the viewpoint of reducing residual air bubbles and achieving a high level of aesthetic appearance. The stick-type cosmetic preferably has a hardness of 300N to 1500N at 35°C and / or a melt viscosity of 1 to 1000mPa·s at 100°C.

[0071] The component (B) used in the second embodiment preferably contains a silicone oil from the viewpoint of reducing residual bubbles. The silicone oil is preferably dimethylpolysiloxane. The kinematic viscosity (25°C) of the silicone oil is preferably 6 to 1000 mm 2 From the viewpoint of reducing residual air bubbles and improving the aesthetic appearance, it is preferable that the silicone oil content in the stick-type cosmetic is 0.1 to 5% by mass.

[0072] (A) Oily gelling agent The oily gelling agent used in this second embodiment is not particularly limited as long as it is one that is typically used in cosmetics and is capable of solidifying or gelling a liquid oil at 25°C, but an oily gelling agent that can solidify to a predetermined hardness range for the stick-type cosmetic is preferred. As the oily gelling agent, those typically used in cosmetics can be used, such as wax, amino acid-based gelling agents, organically modified clay minerals, sugar fatty acid esters, etc., and one or more selected from these can be used. Of these, the component (A) used in this embodiment is a wax, an amino acid-based gelling agent, or a combination thereof. Furthermore, the component (A) is preferably a wax and / or an amino acid-based gelling agent, and more preferably contains at least a wax. The component (A) preferably has a melting point of 60°C or 70°C or higher.

[0073] The content of component (A) is not particularly limited, but a suitable lower limit relative to the total amount of the stick-type cosmetic is preferably 4% or more, more preferably 8% or more, and even more preferably 11% or more, and a suitable upper limit is preferably 20% or less, more preferably 17% or less, and even more preferably 14% or less. Suitable numerical ranges are preferably 4 to 20%, more preferably 8 to 17%, and even more preferably 11 to 14%. Adjusting the content of component (A) can improve compatibility with oily gelling agents and oils that are liquid at 25°C, which can provide a uniform application feel and color of the stick-type cosmetic, as well as reduce residual air bubbles that may occur during filling.

[0074] <Wax> The wax used in the second embodiment is not particularly limited as long as it is a wax derived from animal oil, vegetable oil, synthetic oil, or the like, which is usually blended in cosmetics.

[0075] The wax is not particularly limited, but examples thereof include hydrocarbon waxes such as paraffin wax, ceresin wax, montan wax, microcrystalline wax, synthetic wax, ethylene-propylene copolymer, polyethylene wax, Fischer-Tropsch wax, and polypropylene wax; and ester waxes such as candelilla wax, carnauba wax, beeswax, rice wax, sunflower wax, and jojoba ester. Of these, it is preferable to use a combination of hydrocarbon wax and ester wax from the viewpoints of reducing residual air bubbles and improving the aesthetic appearance.

[0076] The wax preferably has a melting point of 60°C or higher (more preferably 70°C or higher), with the preferred upper limit being the upper limit typically used in cosmetics. Examples of waxes with melting points of 60 to 90°C or 80 to 90°C include ester waxes such as candelilla wax. Examples of waxes with melting points of 90 to 110°C include, but are not limited to, ethylene-propylene copolymers, synthetic waxes (e.g., hydrocarbon waxes), Fischer-Tropsch waxes, polypropylene waxes, and other hydrocarbon waxes. Using a combination of waxes with different melting points makes the contours of the convex portions of the convex three-dimensional pattern more distinct, resulting in a three-dimensional pattern with a more aesthetic appearance. Therefore, it is preferable to use a combination of hydrocarbon waxes and ester waxes with different melting points.

[0077] The melting point of the wax has a preferred lower limit of 60°C or 70°C or higher, more preferably 80°C or higher, and a preferred upper limit of 110°C or 100°C or lower, more preferably 95°C or lower, with a preferred numerical range of 70°C to 110°C.

[0078] The wax component (A) used in this second embodiment can be one or more waxes selected from waxes having a melting point of 60 to 90°C (for example, waxes having a melting point of 80 to 90°C) and waxes having a melting point of 90 to 110°C. These three exemplified waxes can be combined appropriately, and one or more waxes selected from these can be used. In this embodiment, by adjusting and using a wax with a high melting point, the contours of the three-dimensional pattern can be more clearly defined, and a three-dimensional pattern with a more aesthetically pleasing appearance can be obtained.

[0079] The mass content ratio of a combination of waxes with different melting point ranges, for example, the mass content ratio of a wax with a melting point of 90 to 110°C (preferably about 90 to 100°C) to a wax with a melting point of 60 to 90°C (preferably about 80 to 90°C), is not particularly limited, but may be, for example, 1-20:0.5-5, and preferably 5-15:1-2, but may be set appropriately by adjusting the silicone oil and other liquid oils.

[0080] In the second embodiment, the melting point is measured using a differential scanning calorimeter (DSC6200, manufactured by Seiko Instruments Inc.) by holding a sample at −10° C. for 5 minutes under a nitrogen atmosphere and then raising the temperature at a rate of 10° C. / min. The melting point (Tm) is defined as the peak top of the peak observed on the highest temperature side of the melting endothermic curve obtained by raising the temperature at 10° C. / min.

[0081] The content of the wax in component (A) is not particularly limited, but from the viewpoints of aesthetic appearance and ease of use, a suitable lower limit relative to the total amount of the stick-type cosmetic is preferably 5% or more, more preferably 6% or more, and even more preferably 8% or more. From the viewpoints of aesthetic appearance and ease of use, a suitable upper limit is preferably 25% or less, more preferably 20% or less, and even more preferably 15% or less. A suitable numerical range is preferably 5 to 25%, more preferably 6 to 20%, and even more preferably 8 to 15%. Adjusting the content of component (A) can improve compatibility with the wax and oil agents that are liquid at 25°C, which in turn can provide a stick-type cosmetic with a uniform application feel, uniform color, and reduced residual air bubbles that may occur during filling.

[0082] <Amino acid-based gelling agent> The amino acid gelling agent (component (A)) used in this second embodiment is an oily gelling agent having an amino acid as the main skeleton, and examples thereof include dibutyl lauroyl glutamide (melting point 151-160°C) and dibutyl ethyl hexanoyl glutamide (melting point 183-196°C).

[0083] The melting point of the amino acid gelling agent is not particularly limited, but is preferably about 150°C to 200°C.

[0084] The content of the amino acid gelling agent of component (A) is not particularly limited, but a suitable lower limit relative to the total amount of the stick-type cosmetic is preferably 4% or more, more preferably 4.5% or more, and even more preferably 5% or more, and a suitable upper limit is preferably 7% or less, more preferably 6.5% or less, and even more preferably 6% or less. A suitable numerical range is preferably 4 to 7%, more preferably 4.5 to 6.5%, and even more preferably 5 to 6%. Adjusting the content of component (A) can improve the compatibility between the amino acid gelling agent and an oil that is liquid at 25°C, which in turn can provide a uniform application feel and color of the stick-type cosmetic, as well as reduce residual air bubbles that may occur during filling.

[0085] (B) Oil that is liquid at 25°C The component (B) used in this second embodiment, which is an oil that is liquid at 25°C, can be any oil that is commonly used in cosmetics, without any particular limitations. Examples include hydrocarbon oils, ester oils, higher alcohols, fatty acids, silicone oils, fluorine-based oils, etc., regardless of their origin, such as animal oils, vegetable oils, or synthetic oils, and one or more of these can be selected and contained or used in the liquid oil or stick-type cosmetic.

[0086] The component (B) oil that is liquid at 25° C. may be one or more oils selected from hydrocarbon oils, ester oils, higher alcohols, and silicone oils, or a combination of two, three, or four oils. Furthermore, the component (B) oil that is liquid at 25° C. may be a combination of an oil containing one or more oils selected from hydrocarbon oils, ester oils, and higher alcohols, and a silicone oil.

[0087] Furthermore, from the viewpoint of reducing residual bubbles, the component (B) oil that is liquid at 25°C is preferably a combination of an oil that is liquid at 25°C other than silicone oil and silicone oil. Furthermore, from the viewpoint of reducing residual bubbles, the component (B) oil that is liquid at 25°C is preferably a combination of ester oil and silicone oil. Furthermore, from the viewpoint of reducing residual air bubbles and obtaining a three-dimensional pattern with a more aesthetic appearance, it is preferable that the component (B) or the stick-type cosmetic contains at least a liquid ester oil and / or a liquid silicone oil, and the liquid ester oil and / or liquid silicone oil may further contain a liquid hydrocarbon oil and / or a liquid higher alcohol.

[0088] The content of component (B), an oil that is liquid at 25°C, relative to the total amount of the stick-type cosmetic is not particularly limited, but from the viewpoints of aesthetic appearance and usability, a suitable lower limit is preferably 65% ​​or more, more preferably 70% or more, and even more preferably 75% or more, and a suitable upper limit is not particularly limited, but from the viewpoints of aesthetic appearance and usability, is preferably 90% or less, more preferably 87.5% or less, and even more preferably 85% or less.

[0089] <Liquid hydrocarbons> The hydrocarbon oil that is liquid at 25°C used in the second embodiment is not particularly limited, but examples thereof include liquid paraffin, squalane, polybutene, polyisobutylene, dodecane, isododecane, tridecane, isotridecane, tetradecane, isotetradecane, isopentadecane, isohexadecane, liquid isoparaffin, squalane, hydrogenated polydecene, and hydrogenated polyisobutene, and one or more of these may be used. The liquid hydrocarbon oil preferably contains or uses hydrogenated polydecene and / or hydrogenated polyisobutene.

[0090] <Liquid ester oil> The ester oil that is liquid at 25°C used in this second embodiment is not particularly limited, but examples include ester oils of fatty acids, organic acids, etc. with (polyhydric) alcohols, (poly)glycerin, sugars, sugar alcohols, etc. More specifically, for example, diisobutyl adipate, 2-hexyldecyl adipate, di-2-heptylundecyl adipate, cetyl 2-ethylhexanoate, stearyl 2-ethylhexanoate, isostearyl 2-ethylhexanoate, isotridecyl isononanoate, isononyl isononanoate, diisopropyl sebacate, di-2-ethylhexyl sebacate, isopropyl myristate, octyldodecyl myristate, isostearyl myristate, myristyl myristate, isopropyl palmitate, cetyl palmitate, 2-ethylhexyl palmitate, octyldodecyl stearate, 2-ethylhexyl stearate, octyldodecyl isostearate, isostearyl Esters of fatty acids and monohydric alcohols such as isostearyl isostearate, 2-ethylhexyl isostearate, isopropyl isostearate, trimethylolpropane triisostearate, ethylhexyl methoxycinnamate, octyldodecyl stearoyl stearate, octyldodecyl stearoyloxystearate, oleyl oleate, octyldodecyl oleate, decyl oleate, and tritridecyl trimellitate; esters of fatty acids and polyhydric alcohols such as propylene glycol dicaprate and neopentyl glycol dicaprate; esters of fatty acids and sugar alcohols such as pentaerythrityl tetraethylhexanoate and dipentaerythrityl tetraisostearate;Esters of organic acids and alcohols such as triethyl citrate, di-2-ethylhexyl succinate, and diisostearyl malate, coconut oil, olive oil, palm oil, macadamia nut oil, meadowfoam oil, jojoba oil, rapeseed oil, rice bran oil, castor oil, caprylic / capric triglyceride, glyceryl tri-2-ethylhexanoate, polyglyceryl-10 decaethylhexanoate, polyglyceryl-2 isostearate, polyglyceryl-2 diisostearate, and polyglyceryl-2 triisostearate. esters of polyglycerin with fatty acids such as polyglyceryl-2 tetraisostearate and polyglyceryl-10 decaisostearate; dimer dilinoleyl bisisostearyl dimer dilinoleate, dimer dilinoleyl diisostearate, di(isostearyl / phytosteryl) dimer dilinoleate, dihydrogenated rosinder madder dilinoleyl, di(phytosteryl 2-octyldodecyl) N-lauroyl-L-glutamate, and the like, of which one or more can be used;

[0091] Among the liquid ester oils, from the viewpoints of aesthetic appearance and usability, organic acid esters and fatty acid esters are preferred, and more preferred are one or more selected from the group consisting of esters of organic acids and alcohols, esters of fatty acids and alcohols, esters of fatty acids and polyhydric alcohols, esters of fatty acids and polyglycerols, and esters of fatty acids and sugar alcohols.

[0092] It is more preferable that the liquid ester oil contains or uses one or more selected from the group consisting of an ester of an organic acid and an alcohol, an ester of a fatty acid and a (monohydric) alcohol, and an ester of a fatty acid and a polyglycerin. It is more preferable that the liquid ester oil contains or uses at least an ester of a fatty acid and an alcohol (preferably a monohydric alcohol) or polyglycerin.

[0093] More preferred examples of the liquid ester oil include one or more selected from diisostearyl malate, tritridecyl trimellitate, isotridecyl isononanoate, octyldodecyl stearoyl stearate, octyldodecyl stearate, octyldodecyl stearoyloxystearate, polyglyceryl-2 triisostearate, and polyglyceryl-10 decaisostearate, or a combination of all of these.

[0094] The content of the liquid ester oil relative to the total amount of the stick-type cosmetic is not particularly limited, but from the viewpoints of aesthetic appearance and usability, a suitable lower limit is preferably 30% or more, more preferably 35% or more, and even more preferably 40% or more, and a suitable upper limit is not particularly limited, but from the viewpoints of aesthetic appearance and usability, is preferably 90% or less, more preferably 87.5% or less, and even more preferably 85% or less.

[0095] <Liquid higher alcohol> Examples of higher alcohols (preferably having 16, 18, 20, or 22 to 24 carbon atoms) that are liquid at 25°C used in this second embodiment include oleyl alcohol, 2-octyldodecanol, 2-decyltetradecanol, isostearyl alcohol, and 2-hexyldecanol, and one or more of these can be used. The higher alcohol preferably contains or uses at least 2-octyldodecanol and / or 2-decyltetradecanol.

[0096] The content of the liquid higher alcohol relative to the total amount of the stick-type cosmetic is not particularly limited, but from the viewpoints of aesthetic appearance and usability, a suitable lower limit is preferably 1% or more, more preferably 5% or more, and even more preferably 10% or more, and a suitable upper limit is not particularly limited, but from the viewpoints of 50% or less, more preferably 40% or less, and even more preferably 30% or less.

[0097] <Liquid fluorinated oils> The fluorine-based oils that are liquid at 25°C used in this embodiment are not particularly limited, but examples include perfluoropolyether, perfluorodecane, perfluorooctane, etc., and these can be used alone or in combination of two or more.

[0098] <Liquid silicone oil> The silicone oil used in this embodiment that is liquid at 25°C is not particularly limited as long as it is liquid at 25°C and is typically used in cosmetics, and any silicone oil can be used, regardless of whether it is volatile or non-volatile, its viscosity, or its origin.

[0099] The liquid silicone oil is not particularly limited, but examples thereof include dimethylpolysiloxane, methylphenylpolysiloxane, decamethylcyclopentasiloxane, octamethylcyclotetrasiloxane, alkoxy-modified organopolysiloxane, and fluorine-modified silicone, and these can be used alone or in combination of two or more. Among these, chain silicone oils such as dimethylpolysiloxane and methylphenylpolysiloxane are preferred, and dimethylpolysiloxane is more preferred.

[0100] The inclusion or use of at least silicone oil (preferably silicone oil adjusted to a suitable kinematic viscosity range) in a stick-type cosmetic composition has the advantage of reducing the amount of residual air bubbles in the cosmetic composition itself when filled. Furthermore, the use of silicone oil has the advantage of making it easier to reduce residual air bubbles and to easily obtain three-dimensional patterns with a more aesthetic appearance. Furthermore, the use of silicone oil has the advantage of making it easier to adjust the hardness of the stick-type cosmetic composition at 35°C to fall within a suitable range.

[0101] The content of the liquid silicone oil relative to the total amount of the stick-type cosmetic is not particularly limited, but from the viewpoint of reducing residual air bubbles, a suitable lower limit is preferably 0.01% or more, more preferably 0.1% or more, and even more preferably 0.5% or more; and from the viewpoint of suppressing a decrease in the sharpness of pattern shapes such as lines or contours, a suitable upper limit is not particularly limited, but is preferably 10% or less, more preferably 5% or less, and even more preferably 3% or less; the suitable numerical range is preferably 0.01 to 10%, and more preferably 0.1 to 5%.

[0102] The content of the liquid dimethicone can be set to any of the suitable upper and lower limits of the "content of the liquid silicone oil" described above, and for example, the suitable range is preferably 0.01 to 10%, more preferably 0.1 to 5%.

[0103] Furthermore, the content of the liquid silicone oil relative to the liquid oils other than the liquid silicone oil [(the liquid silicone oil / the liquid oils excluding the silicone oil) (%)] is not particularly limited, but from the viewpoints of aesthetic appearance and usability, a suitable lower limit is preferably 0.01% or more, more preferably 0.1% or more, and even more preferably 0.5% or more; and a suitable upper limit is not particularly limited, but from the viewpoints of aesthetic appearance and usability, is preferably 20% or less, more preferably 15% or less, and even more preferably 10% or less; the suitable numerical range is preferably 0.01 to 20%, and more preferably 0.1 to 15%. Furthermore, "the liquid silicone oil" in the above [(the liquid silicone oil / the liquid oil agent excluding the silicone oil) (%)] may be substituted with "the liquid dimethicone."

[0104] The kinematic viscosity (mm 2 / s(CS)) is preferably 1 mm from the viewpoint of aesthetic appearance and usability. 2 / s or more, preferably 2 mm 2 / s or more, more preferably 5 mm 2 / s or more, more preferably 6 mm 2 / s or more, and the preferred upper limit is preferably 100,000 mm 2 / s or less, preferably 10,000 mm 2 / s or less, preferably 5000 mm 2 / s or less, preferably 3000mm 2 / s or less, preferably 2000mm 2 / s or less, preferably 1000mm 2 / s or less, and the preferred numerical range is preferably 10,000 to 100,000 mm 2 / s, more preferably 6 to 1000 mm 2 / s. The kinematic viscosity (mm) of the dimethylpolysiloxane (also known as dimethicone) at 25°C 2 / s(CS)) is the kinematic viscosity of the silicone oil at 25°C (mm 2 / s(CS))" can be appropriately adopted, and for example, the preferred numerical range is preferably 1 to 100,000 mm 2 / s, more preferably 6 to 1000 mm 2 / s.

[0105] By adjusting the kinematic viscosity of the silicone oil to a more suitable range, it is possible to improve compatibility with oil agents other than the silicone oil, reduce the amount of air bubbles remaining during filling, and adjust the silicone oil to prevent solidification of the component (A) oil-based gelling agent (preferably a wax).

[0106] The kinematic viscosity in this specification is measured in accordance with the Kinematic Viscosity Test Method for Crude Oil and Petroleum Products and the Viscosity Index Calculation Method (JIS K2283) specified in the Japanese Industrial Standards.

[0107] In addition to the above-mentioned components (A) and (B), the second embodiment may contain components typically used in cosmetics, such as powders, coloring components (colored powders), surfactants, aqueous components, anti-fading agents, antioxidants, antifoaming agents, cosmetic ingredients, preservatives, and fragrances, within a range that does not impair the effects of the present embodiment.

[0108] Furthermore, in the second embodiment, oil is used as the continuous phase, and it is preferable that the oil is substantially free of water. In this embodiment, "substantially free of water" means that the oil is not contained at all, or that even if the oil is contained, the water content is so low that it does not affect the present embodiment. The water content that does not affect the present embodiment is, for example, 5%, 3%, or 1% or less of the total amount of the stick-type cosmetic.

[0109] The powder is not particularly limited as long as it is one that is commonly used in cosmetics, and examples thereof include porous or fumed silicic anhydride, silicic anhydrides such as dimethylsilyl silica, etc. The content of the powder relative to the total amount of the stick-type cosmetic is not particularly limited, but a suitable lower limit is preferably 0.5% or more, more preferably 1% or more, and a suitable upper limit is preferably 5% or less, more preferably 3% or less.

[0110] Examples of the coloring powder include inorganic powders such as ferric iron oxide, ultramarine blue, red iron oxide, yellow iron oxide, black iron oxide, titanium oxide, zinc oxide, chromium oxide, chromium hydroxide, carbon black, and barium sulfate; and pigment powders such as organic tar-based pigments such as Red 202 and Yellow 4, and organic color lake pigments. If necessary, these can be combined, or one or more types can be used. The content of the coloring powder relative to the total amount of the stick-type cosmetic is not particularly limited, but a suitable lower limit is preferably 1% or more, more preferably 2% or more, and even more preferably 3% or more, and a suitable upper limit is preferably 8% or less, more preferably 6% or less, and even more preferably 5% or less.

[0111] In a more preferred aspect of the second embodiment, in the stick-type cosmetic preparation of the present technology, the component (B) preferably contains a silicone oil. Among the silicone oils, one containing dimethylpolysiloxane is more preferred. The kinematic viscosity (25°C) of the silicone oil (preferably dimethylpolysiloxane) is 6 to 1000 mm 2 / s. The content of the silicone oil (preferably dimethylpolysiloxane) is preferably 0.1 to 5%.

[0112] The second embodiment uses a composition containing the above-mentioned components (A) and (B), etc., which further reduces the amount of residual air bubbles that occur during mold filling, and can provide a stick-type cosmetic product having a convex shape (preferably a convex three-dimensional pattern with linear grooves) with a more aesthetically pleasing appearance.

[0113] The stick-type cosmetic material of the second embodiment can appropriately adopt the shape of the first embodiment described above and the technical characteristics relating to the physical properties of the third embodiment described below. For example, the shape of the second embodiment can have a convex three-dimensional pattern on its surface, which has a configuration or area with linear grooves provided between convex portions. Furthermore, the physical properties of the second embodiment can be, for example, a hardness of the stick-type cosmetic at 35°C of 300 N to 1500 N and / or a melt viscosity of the stick-type cosmetic at 100°C of 1 to 1000 mPa s. The form, dosage form, external shape, manufacturing method, etc. of the second embodiment can be appropriately adapted from those of the first embodiment described above.

[0114] In another aspect of the second embodiment, in the production of a stick-type cosmetic product or the preparation of a cosmetic composition for use in a stick-type cosmetic product, the use of or incorporation of a silicone oil in a component (B) other than the component (A) and the silicone oil (e.g., an ester oil) or a composition containing these can significantly reduce the amount of trapped air bubbles that occur during mold filling, thereby providing a stick-type cosmetic product in which the residual air bubbles in the resulting convex shape are significantly reduced and the aesthetic appearance of the convex shape (preferably a three-dimensional pattern) is improved. Therefore, another aspect of the second embodiment can provide a silicone oil or its use for reducing residual air bubbles in a convex three-dimensional pattern, or a method for using a silicone oil in a component (B) other than the component (A) and the silicone oil or a composition containing these. Furthermore, it can provide an agent for reducing residual air bubbles in a convex three-dimensional pattern during the production of a stick-type cosmetic product using a silicone oil, or the use of a silicone oil in the production of an agent for reducing residual air bubbles in a convex three-dimensional pattern during the production of a stick-type cosmetic product, or a method for reducing residual air bubbles in a convex three-dimensional pattern during the production of a stick-type cosmetic product using a silicone oil.

[0115] 1-3. Stick-type cosmetic preparation (physical properties) according to the third embodiment The third embodiment can provide a stick-type cosmetic having a hardness of 300N to 1500N at 35°C and / or a melt viscosity of 1 to 1000mPa·s at 100°C.

[0116] The melt viscosity (mPa·s) of the stick-type cosmetic at 100°C is not particularly limited, but a suitable lower limit is preferably 0.5 mPa·s or more, more preferably 1 mPa·s or more, even more preferably 10 mPa·s or more, more preferably 20 mPa·s or more, and more preferably 30 mPa·s or more; and a suitable upper limit is preferably 600 mPa·s or less, more preferably 500 mPa·s or less, even more preferably 400 mPa·s or less, more preferably 300 mPa·s or less, more preferably 150 mPa·s or less, more preferably 110 mPa·s or less, and more preferably 100 mPa·s or less; the suitable numerical range is more preferably 1 to 600 mPa·s, from the viewpoints of reducing residual air bubbles and obtaining a three-dimensional pattern with a more aesthetic appearance.

[0117] <Method for measuring melt viscosity at 100℃> The melt viscosity (mPa·s) of a stick-type cosmetic at 100°C is measured using a B-type rotational viscometer (Shibaura Systems Co., Ltd.) on a sample at 100°C.

[0118] The hardness of the stick-type cosmetic at 35°C is not particularly limited, but a suitable lower limit is preferably 150 N or more, more preferably 200 N or more, even more preferably 300 N or more, more preferably 400 N or more, and even more preferably 500 N or more, and a suitable upper limit is preferably 1700 N or less, more preferably 1500 N or less, even more preferably 1400 N or less, more preferably 1200 N or less, and more preferably 1000 N or less. From the viewpoint of reducing residual air bubbles and obtaining a three-dimensional pattern with a more aesthetic appearance, the suitable numerical range is more preferably 300 N to 1500 N.

[0119] <Method for measuring hardness (N) at 35°C> The raw material composition (ingredients) was melted at 100°C and stirred while being filled into a jar. The melt was then left at 35°C for 1 hour to prepare a sample, which was then used to measure the hardness (N) of the sample using a FUDOH rheometer (manufactured by Rheotech Co., Ltd.) under the following measurement conditions: 5mmφ jig, table speed 2cm / min, maximum value when penetration was 2mm.

[0120] In the stick-type cosmetic of the third embodiment, it is preferable to adjust the cosmetic composition so that the hardness of the stick-type cosmetic at 35°C is 300 N to 1500 N and / or the melt viscosity of the stick-type cosmetic at 100°C is 1 to 1000 mPa s, for example.

[0121] In the third embodiment, by adjusting the physical properties of the stick-type cosmetic material to fall within specific ranges as described above, it is possible to reduce the amount of residual air bubbles that are generated when the material is filled into a mold, and to provide a stick-type cosmetic material having a convex shape (preferably a convex three-dimensional pattern having linear grooves) with a more aesthetic appearance.

[0122] Furthermore, it is more preferable to use a silicone oil that is liquid at 25°C and adjust it to achieve the suitable physical properties of the third embodiment, taking into consideration the components and content of the oily gelling agent (preferably wax) used as a raw material during production, in order to reduce the amount of residual air bubbles that occur during mold filling and to obtain a convex shape (preferably a three-dimensional pattern) with a more aesthetic appearance.

[0123] The stick-type cosmetic material of the third embodiment can appropriately adopt the technical features relating to the shape of the first embodiment and the physical properties of the second embodiment described above. For example, the shape of the third embodiment can be one that has a convex three-dimensional pattern on its surface with linear grooves between convex portions. Furthermore, for example, the composition of the third embodiment can be one that contains at least component (A) an oily gelling agent (preferably a wax or amino acid-based gelling agent) and (B) an oily agent that is liquid at 25°C. The form, dosage form, external shape, manufacturing method, etc. of the third embodiment can be appropriately adopted from the first embodiment described above.

[0124] 1-4. Combinations of the First to Third Embodiments As described above, the present technology can provide a stick-type cosmetic preparation (shape) according to the present first embodiment, a stick-type cosmetic preparation (composition) according to the present second embodiment, and a stick-type cosmetic preparation (physical properties) according to the present third embodiment. These embodiments can also be combined as appropriate, for example, combinations of the present first embodiment and the present second embodiment, the present first embodiment and the present third embodiment, the present second embodiment and the present third embodiment, and combinations of the present first to the present third embodiments. By combining these, it is possible to effectively reduce the amount of residual air bubbles that occur during mold filling, and to provide a stick-shaped cosmetic product having a convex three-dimensional pattern with a more aesthetically pleasing appearance.

[0125] 1-5. Manufacturing method of the stick-type cosmetic preparation according to the fourth embodiment As shown in the Examples below, the inventors provided the rubber mold surface with irregularities that are complementary to the structure (or region) of linear grooves between convex portions on the upper surface of the convex shapes protruding from the surface of a stick-type cosmetic product (see Figures 4 and 5). Specifically, the inventors adjusted the mold interior to correspond to the convex three-dimensional pattern (particularly including a structure consisting of convex portions, linear grooves, and convex portions) that provides the aesthetic appearance of the stick-type cosmetic product. More specifically, a protrusion was provided in a recess in the rubber mold surface, dividing the recess into two, thereby providing the rubber mold surface with a structure including a dividing recess, a protrusion, and another dividing recess. The inventors discovered that using such a rubber mold surface effectively reduces air pockets that occur near the edges or contours of the recesses in the mold during filling. Note that the protrusions complementary to the linear grooves may be linear protrusions.

[0126] More preferred specific examples include providing protrusions between complementary recesses in the mold that correspond to the configuration of a convex three-dimensional pattern in which linear grooves exist between convex portions in the stick-type cosmetic; and more preferably providing protrusions between the recesses in the mold low so that the height of the protrusions is equal to or lower than the surface height reference line.

[0127] The method for producing a stick-type cosmetic product according to this fourth embodiment can be a general production method, except for the techniques related to the shape, composition, and physical properties of the stick-type cosmetic product described above. For example, the stick-type cosmetic product can be obtained by heating and uniformly mixing the oily component of the cosmetic composition for the stick-type cosmetic product described above, then uniformly mixing the other components, filling a mold with a specific shape, and cooling to solidify. In the production method of this embodiment, it is preferable to pour a cosmetic composition containing the above-mentioned components (A) and (B) into a mold in a heated state, and then cooling to solidify to obtain a stick-type cosmetic product. Furthermore, the mixture before filling the mold may be adjusted to the desired physical properties by adjusting the blend and content of each component, etc.

[0128] Furthermore, the heating temperature for melting a cosmetic composition containing at least components (A) and (B) is preferably set appropriately within a temperature range above the melting point of component (A) (e.g., about ±20°C of the melting point), taking into account the melting point of the component (A) used. For example, when a wax is used, the temperature may be about 90 to 120°C, and when an amino acid-based gelling agent is used, the temperature may be about 170 to 190°C. The melting point range of component (A) described above may be appropriately adopted. Furthermore, when optional components such as coloring components are blended, heating at about 90 to 110°C or about 120 to 140°C may be used. The cooling and solidifying temperature is not particularly limited, but may be about 4 to 40°C or room temperature (about 20 to 30°C).

[0129] <Mold> The mold used in the manufacturing method of this embodiment preferably has a mold surface having a shape complementary to the characteristic shape of the stick-type cosmetic of this embodiment. Examples of molds include metal molds and rubber molds, but flexible rubber molds are preferred because they are less likely to damage the convex three-dimensional pattern on the surface of the stick-type cosmetic when the solidified stick-type cosmetic is removed from the mold, resulting in a more aesthetically pleasing appearance of the stick-type cosmetic. It is preferable to provide protrusions on the mold surface in the recesses used to form the convex three-dimensional pattern on the stick-type cosmetic, from the viewpoints of reducing the amount of residual air bubbles that may occur after solidification when the stick-type cosmetic is filled into the mold and forming a convex three-dimensional pattern with a more aesthetically pleasing appearance after solidification.

[0130] In a more preferred embodiment, the method for producing a stick-type cosmetic product uses a rubber mold for rouge filling to form the shape of the stick-type cosmetic product described above, the mold has one or more recessed three-dimensional patterns recessed from the surface of the mold in order to provide a protruding three-dimensional pattern on the surface of the stick-shaped cosmetic material; The method for producing the stick-type cosmetic can be provided, wherein the recessed three-dimensional pattern has one or more protrusions, and the protrusions are located between adjacent recesses. The three-dimensional concave pattern is preferably composed of two or more recesses and one or more protrusions. The three-dimensional concave pattern preferably has a structure or region having recesses and protrusions between the recesses. In the manufacturing method of this embodiment, it is preferable that the height of the upper surface of the protrusion is set lower than a mold surface height reference line.

[0131] The mold surface has an uneven shape that is complementary to the uneven shape that is a geometric characteristic of the stick-type cosmetic of the present technology. Therefore, for example, convex portions, concave portions, linear grooves, etc. of the stick-type cosmetic can be made into concave portions, convex portions, protrusions, etc. on the mold surface, and the uneven shape that is a geometric characteristic of the stick-type cosmetic described above can be converted into a complementary uneven shape and used as appropriate. For example, the surface area of ​​one concave three-dimensional pattern is preferably 0.25 to 100 mm 2 When the upper surface of the entire three-dimensional pattern is taken as 100%, the area of ​​the upper surface of the recesses excluding the area of ​​the protruding portions on the upper surface of the protrusions is preferably 70% or more. Furthermore, the linear shape of the protrusions on the mold surface can be a portion or region that is parallel or non-parallel to the filling direction. The height of the protrusions on the mold surface is preferably 0.1 mm or more and 0.5 mm or less. The protrusion width of the protrusions on the mold surface is preferably 0.1 to 5 mm. The linear length of the protrusions is preferably 0.1 mm or more and 10 mm or less. The depressions in the mold surface are preferably 0.1 to 0.3 mm in diameter, and the widths of the depressions in the mold surface are preferably 0.1 to 5 mm. Furthermore, the ratio of the height of the protrusion to the depression of one recess adjacent to the protrusion on the mold surface is 50% or more and 100% or less.

[0132] As shown in Figures 4 and 5, a rubber mold 50 is used, which has one or more recessed three-dimensional patterns 51 recessed from a mold surface 54 of the mold 50, and the recessed three-dimensional patterns 51 have one or more protrusions 53, which are located between recesses 52. A bulk 30, which is a cosmetic composition, is liquefied by heating, and the liquid bulk 30 is filled into the mold 50 from the filling direction (downward arrow). The liquid bulk 30 filled into the mold 50 contains residual air bubbles 58, which tend to remain in the recesses 52 on the mold surface. In particular, as shown in Figure 5, the closer the angle between the filling direction and the protrusions 53 is to 90 degrees, the more likely the residual air bubbles are to remain in the recesses 52.

[0133] In this embodiment, one protrusion is provided per recess, dividing the recess 52 into two, and the protrusion 53 located between the recesses 52 is formed on the inner surface of the mold 50. This effectively reduces the number of residual air bubbles 58 remaining in the recesses 52, even when the angle between the filling direction and the protrusion 53 is 90 degrees. Furthermore, by adjusting the composition or physical properties of the cosmetic composition, the number of residual air bubbles 58 remaining in the recesses 52 can be further effectively reduced. After cooling and solidifying, the stick-type cosmetic 10 can be removed from the surface of the mold 50. The stick-type cosmetic 10 has a plurality of different floral convex three-dimensional patterns 1 of various sizes protruding from its surface. Each convex three-dimensional pattern 1 has a plurality of linear grooves 3, which are located between the convex portions 2. The stick-type cosmetic material 10 has fewer air bubbles remaining when filling a mold, and has a three-dimensional pattern with a more aesthetically pleasing appearance.

[0134] 2. This technology can also employ the following configurations. [1] Having one or more convex three-dimensional patterns that protrude above the surface height reference line, the protruding three-dimensional pattern has one or more linear grooves, A stick-type cosmetic material, wherein the linear grooves are present between adjacent convex portions. The cosmetic material may incorporate any of the technical features described below in [2], [3], [4], and [6], as appropriate. [2] A stick-type cosmetic having one or more convex three-dimensional patterns that protrude above a surface height reference line, the convex three-dimensional patterns having one or more structures or regions with linear grooves provided between convex portions. The linear grooves are preferably provided adjacent to the convex portions. The cosmetic may incorporate any of the technical features described in [1] above and [3], [4], and [6] below, as appropriate. [3] A stick-type cosmetic product having one or more convex three-dimensional patterns that protrude above a surface height reference line, at least one of the three-dimensional patterns having a large convex portion with linear grooves. The large convex portion may be divided into convex portions by the linear grooves, and may have a structure or area with linear grooves provided between the divided convex portions. The cosmetic product may appropriately incorporate any one of the technical features described above in [1], [2], or the following [4] and [6].

[0135] [4] A stick-type cosmetic preparation comprising at least the following components (A) and (B): (A) an oily gelling agent (preferably a wax), and (B) an oily agent that is liquid at 25° C. The cosmetic preparation may incorporate any one of the technical features described in [1] to [3] above and [6] below, as appropriate. [5] The stick-type cosmetic preparation according to any one of [1] to [3] above, which contains at least the following components (A) and (B): (A) an oily gelling agent (preferably a wax), and (B) an oily agent that is liquid at 25°C.

[0136] [6] A stick-type cosmetic product, the hardness of which at 35°C is 300N to 1500N, and / or the melt viscosity of which at 100°C is 1 to 1000mPa s. The cosmetic product may incorporate any one of the technical features of [1] to [4] above, as appropriate. [7] The stick-type cosmetic according to any one of [1] to [6] above, wherein the stick-type cosmetic has a hardness of 300 N to 1500 N at 35°C and / or a melt viscosity of 1 to 1000 mPa·s at 100°C.

[0137] [8] The stick-type cosmetic material according to any one of [1] to [7] above, wherein the ratio of the depth of the linear grooves to the height of the convex portions adjacent to the linear grooves that protrude above the surface height reference line ([depth of linear grooves] / [height of convex portions adjacent to linear grooves]) is 50% or more and 150% or less. Preferably, the ratio ([depth of linear grooves] / [height of convex portions adjacent to linear grooves]) is 50% or more and less than 100%. [9] The stick-type cosmetic according to any one of [1] to [8], wherein the linear direction of the linear grooves has a portion that is non-parallel to the longitudinal direction when viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic. It is preferable that the direction of the linear grooves is such that the angle formed between the longitudinal direction (upward or downward: 0 degrees) and the direction from the center of the three-dimensional pattern outward (left-right and upward and downward directions) is in the range of 30 to 90 degrees or an angle other than 90 degrees.

[0138]

[10] The stick-type cosmetic according to any one of [1] to [9] above, wherein the stick-type cosmetic has a hardness of 300N to 1500N at 35°C.

[11] The stick-type cosmetic according to any one of [1] to

[10] above, wherein the melt viscosity of the stick-type cosmetic at 100°C is 1 to 1000 mPa·s.

[0139]

[12] The stick-type cosmetic preparation according to any one of [1] to

[11] , wherein the component (A) contains a wax and / or an amino acid-based gelling agent, or contains at least a wax.

[0140]

[13] The stick-shaped cosmetic preparation according to any one of [1] to

[12] above, wherein the component (B) contains silicone oil. The silicone oil is preferably dimethylpolysiloxane. The kinematic viscosity (25°C) of the silicone oil is 6 to 1000 mm 2 / s is preferred. The content of the silicone oil is preferably 0.1 to 5% by mass relative to the total amount of the stick-type cosmetic.

[14] The stick-type cosmetic preparation according to any one of [1] to

[13] above, wherein the component (B) contains an ester oil that is liquid at 25°C.

[0141]

[15] The stick-type cosmetic preparation according to any one of [1] to

[14] above, wherein the linear grooves have one or more characteristics selected from the following: a groove width of 0.2 mm to 4 mm; a groove depth of 0.1 mm to 0.3 mm; a linear length of 0.2 mm to 10 mm; and at least one end of the linear grooves is connected to the space above the surface.

[16] The stick-type cosmetic preparation according to any one of [1] to

[15] , wherein the convex three-dimensional pattern is a pattern including a shape consisting of one or more straight lines, a shape consisting of one or more curved lines, or a shape consisting of a combination of these, when viewed from above.

[17] The stick-type cosmetic according to any one of [1] to

[16] , wherein the shape of the convex three-dimensional pattern, when viewed from above, is one or more selected from a ring shape, a polygonal shape, and a combination thereof. The three-dimensional pattern is preferably a flower shape including a petal shape.

[18] The stick-type cosmetic preparation according to any one of [1] to

[17] , wherein the linear grooves provided in the convex three-dimensional pattern are, when viewed from above, straight and / or curved lines, or a combination of straight and curved lines.

[19] The stick-type cosmetic preparation according to any one of [1] to

[18] above, wherein the height of the three-dimensional pattern is 0.05 to 0.5 mm from the surface.

[0142]

[20] The stick-type cosmetic preparation according to any one of [1] to

[19] , wherein the shape of the convex portions, when viewed from above, is a shape formed by one or more straight lines, a shape formed by one or more curved lines, or a shape formed by a combination of these.

[21] The stick-type cosmetic preparation according to any one of [1] to

[20] , wherein the linear shape of the linear groove may be a unicursal shape, a shape consisting of straight lines, a shape consisting of curved lines, or a shape consisting of a combination of straight lines and curved lines. [Example]

[0143] Hereinafter, the present technology will be described in further detail based on examples, etc. Note that the examples, etc. described below are examples of typical examples, etc. of the present technology, and the scope of the present technology will not be construed as being narrow.

[0144] In the following Example 1: Test Examples 1 to 60, protrusions were provided in recesses on the mold surface of a rubber mold for forming a 10 mm diameter raised three-dimensional pattern on a stick-type cosmetic product. This mold surface was fabricated so that the application portion of the stick-type lipstick was facing upward, and when the stick-type lipstick was viewed from a direction perpendicular to this longitudinal direction, the linear grooves and protrusions were parallel, resulting in a cylindrical lipstick with a horizontal linear pattern. In the same manner, mold surfaces with a vertical linear pattern, a combination of horizontal linear patterns and vertical linear patterns (a grid pattern), and a diagonal pattern running from the upper right to the lower left were also fabricated. More specifically, as shown in Tables 1 to 4, a rubber mold with complementary surfaces was created so that the resulting stick lipstick would have the specified "depth of the linear groove (mm)," "width (mm) of the linear groove sandwiched between two convex portions," "height (mm) of the convex portion adjacent to the linear groove," "length (mm) of the linear groove," "[depth of the linear groove] / [height of the convex portion adjacent to the linear groove]," and "angle of the linear direction of the linear groove." In the following Example 2: Formulation Test Examples 1 to 13, a rubber mold was prepared having a mold surface (inner surface) complementary to a stick lipstick having a complex, three-dimensional floral convex pattern on the top, middle, and bottom portions, as shown in Figure 1. Stick lipsticks were then prepared and evaluated for [absence of remaining air bubbles] and [level of aesthetic appearance], with the results shown in Tables 5 and 6. The "top surface area of ​​the entire pattern (top surface area of ​​the convex part of one convex three-dimensional pattern + top surface area of ​​the groove part of the linear groove in the convex three-dimensional pattern)" of each of the convex three-dimensional patterns at the top, middle, and bottom shown in Figure 1 when viewed from the front is 50, 10, and 95 mm, respectively. 2 and the upper surface area of ​​one convex three-dimensional pattern (mm 2 ) / Top surface area of ​​the entire pattern (mm 2 ) were over 60%, over 50%, and over 60%, respectively.

[0145] The "angle of the linear direction of the linear grooves" in Tables 1 to 4 is the angle formed between the linear direction of the linear grooves relative to the longitudinal direction of the obtained cylindrical lipstick and the longitudinal direction (0 degrees) (see, for example, Figure 3). In the case of the "angle of the linear direction of the linear grooves" in the tables, the linear shape of the linear grooves is formed in a straight line, and the convex portions are formed in a straight line parallel to this. When the "angle of the linear direction of the linear grooves" in the table is 0 degrees (vertical), the convex portions on the stick lipstick are formed vertically, parallel to the vertical linear grooves. When the "angle of the linear direction of the linear grooves" in the table is 90 degrees (horizontal), the convex portions on the stick lipstick are formed horizontally, parallel to the horizontal linear grooves. When the "angle of the linear direction of the linear grooves" in the table is 90 degrees + 0 degrees, the result is a grid pattern where linear grooves at 90 degrees and linear grooves at 0 degrees cross each other.

[0146] When the "angle of the linear direction of the linear groove" in the table is 30 degrees or 45 degrees, the convex portion on the stick lipstick is formed parallel to the horizontal linear groove, in an inclined direction from the upper right to the lower left or from the upper left to the lower right. The angles of 30 degrees and 45 degrees in the "angle of the linear direction of the linear groove" in the table are 30 degrees and 45 degrees clockwise or counterclockwise from 0 degrees above (a slope from the upper right to the lower left or a slope from the upper left to the lower right).

[0147] Regarding the evaluation method for [absence of remaining bubbles], the "average amount of remaining bubbles relative to the number of protrusions" is the "total number of remaining bubbles on one surface / total number of protrusions on one surface" when one surface of the stick lipstick is viewed from one direction.

[0148] These rubber molds were then used to produce stick lipsticks using a press-on lipstick filling method. The cosmetic compositions used were Formulation Examples 1 and 4 shown in Tables 4 and 5 below. The preparation of the cosmetic compositions and the filling of the cosmetic compositions into the molds were carried out in accordance with <Production Process No. 1-12> described below.

[0149] The stick-type lipsticks obtained in <Example 1: Test Examples 1 to 60> were evaluated for "absence of remaining bubbles" and "level of aesthetic appearance" in the <Evaluation Methods> described below, and the results are shown in Tables 1 to 4.

[0150] The results of Example 1: Test Examples 1 to 60 show that by providing protrusions in the recesses on the surface of a cylindrical rubber mold for forming the convex three-dimensional pattern of the stick-type cosmetic, the resulting stick lipstick had one or more convex three-dimensional patterns protruding from its surface, and the convex three-dimensional patterns had one or more structures or regions with linear grooves provided between the convex portions. Furthermore, the stick lipstick had reduced residual air bubbles that occurred when the lipstick was filled into the mold and had a convex three-dimensional pattern with a more aesthetically pleasing appearance.

[0151] As shown in Tables 1 to 4, when the protrusions on the mold surface are at a 90-degree angle (horizontal) relative to the filling direction (in the case of lipstick, a "linear groove angle" of 90 degrees), it is more difficult to ensure a path for the remaining air bubbles to escape than when the protrusions are at a 0-degree angle (vertical) parallel to the filling direction, and therefore the remaining air bubbles are more likely to occur. However, in the case of the present invention, when the "linear groove angle" is 90 degrees (for example, Test Example 33), the results were above the pass mark. Furthermore, the remaining air bubbles can be reduced even when the "linear groove angle" is 30 degrees or 45 degrees. In this way, since the linear shape of the linear grooves can reduce the remaining air bubbles even in various directions, various patterns can be produced, and a stick-type cosmetic product with a highly aesthetic appearance can be obtained.

[0152] Furthermore, in fact, in <Example 2: Formulation Test Examples 1 to 13> described below, a stick-type lipstick having multiple convex three-dimensional patterns of complex floral designs was found to have very good lack of air bubbles and a high level of aesthetic appearance. Based on this, it is believed that the present technology is good at lacking air bubbles and having a high level of aesthetic appearance, even when the lipstick has a convex three-dimensional pattern in which the linear grooves are at least 45 or 50 to 90 degrees.

[0153] Furthermore, in Example 2: Formulation Test Examples 1 to 13, the amount of residual air bubbles generated during mold filling was further reduced, and more suitable conditions for providing a stick-type cosmetic preparation having a three-dimensional pattern with a more aesthetically pleasing appearance were investigated from the perspective of the composition of the cosmetic composition.

[0154] As a result, it was considered more preferable to use component (A) an oily gelling agent (preferably, wax or an amino acid-based gelling agent) and component (B) an oily agent that is liquid at 25°C (preferably, ester oil or silicone oil).

[0155] Furthermore, the inventors investigated the suitable physical properties of a stick-type cosmetic that can further reduce the amount of residual air bubbles that occur during mold filling and provide a stick-type cosmetic that has a three-dimensional pattern with a more aesthetic appearance, and concluded that it is more preferable for the stick-type lipstick to have a hardness of 300 N to 1500 N at 35°C and a melt viscosity of 1 to 1000 mPa s at 100°C.

[0156] Furthermore, in Example 2: Formulation Test Examples 1 to 13, we investigated further reducing the absence of air bubbles and further improving the aesthetic appearance of a stick lipstick formed from an oily gelling agent and an oil that is liquid at 25°C, and found that by using a silicone oil (preferably a silicone oil with a relatively low viscosity), it is possible to further reduce the absence of air bubbles and further improve the aesthetic appearance.

[0157] <Summary> The stick-type cosmetics of Formulation Examples 1 to 13 were able to further reduce the residual air bubbles that occur during mold filling and to have convex shapes (preferably three-dimensional patterns) with a more aesthetic appearance. The resulting stick-type cosmetics were also able to form complex three-dimensional convex patterns and multiple three-dimensional convex patterns of different sizes, giving them a three-dimensional appearance and an excellent aesthetic appearance (see, for example, Figure 1). In particular, the patterns of the stick-type cosmetics of Formulation Examples 3, 4, 10, and 13 had very few residual air bubbles and protruded from the surface as a three-dimensional shape, creating a three-dimensional appearance and a relief-like feel. The relief effect was so strong that the aesthetic appearance was extremely excellent.

[0158] Furthermore, when viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic, the provision of linear grooves on the upper surface of the convex shape made the unevenness of the surface of the convex shape clearly visible, and the outlines and edges of the pattern were also more distinct (see, for example, Figures 1, 2, and 3). Then, using the molds under the conditions of "Examples 44 and 47" shown in Table 3, stick cosmetics were also prepared for the cosmetic compositions of Formulation Examples 2, 3, and 5 to 13, and evaluations were carried out on [freedom of remaining air bubbles] and [level of aesthetic appearance]. In all cases, both the reduction in remaining air bubbles and level of aesthetic appearance were rated at least B or higher. Considering the evaluation results of <Test Examples 1 to 60 in Example 1> and <Formulation Examples 1 to 13 in Example 2>, it is believed that the convex three-dimensional pattern in the stick-type cosmetic product is not limited to a floral pattern and can be set to a wide variety of patterns, has a good lack of residual air bubbles, and has a high aesthetic appearance.

[0159] Furthermore, by incorporating component (A) an oily gelling agent and component (B) an oil that is liquid at 25°C into the stick-type cosmetic, it is possible to further reduce the amount of residual air bubbles that occur during mold filling, and to better suppress the formation of residual air bubbles on the surface of a convex shape (preferably a three-dimensional pattern), while providing a stick-type cosmetic having a convex shape (preferably a three-dimensional pattern) with a more aesthetically pleasing appearance. Furthermore, when a silicone oil with a relatively low viscosity was used among oils that are liquid at 25°C, it was possible to further significantly reduce the amount of residual air bubbles and provide a stick-type cosmetic having a convex shape (preferably a three-dimensional pattern) with a more aesthetically pleasing appearance.

[0160] Furthermore, by adjusting the stick-type cosmetic product so that the hardness of the stick lipstick at 35°C is 300N to 1500N and the melt viscosity of the stick lipstick at 100°C is 1 to 1000mPa s, it is possible to further reduce the amount of residual air bubbles that occur during mold filling, and to better suppress the generation of residual air bubbles on the surface of a convex shape (preferably a three-dimensional pattern), and to provide a stick-type cosmetic product having a convex shape (preferably a three-dimensional pattern) with a more aesthetically pleasing appearance.

[0161] <Evaluation method> [No remaining air bubbles] The average number of remaining air bubbles relative to the number of convex parts per side of the cosmetic material is 0 to 0.1 or less: AA The average number of remaining air bubbles relative to the number of protrusions on one side of the cosmetic product is more than 0.1 and 0.5 or less: A The average number of remaining air bubbles relative to the number of protrusions on one side of the cosmetic is more than 0.5 but not more than 1: B The average number of remaining air bubbles per convex part on one side of the cosmetic is more than 1 and 1.5 or less: C The average number of remaining air bubbles per convex part on one side of the cosmetic exceeds 1.5: D

[0162] [High aesthetic appearance] (Evaluation items) Twenty cosmetic expert evaluators evaluated the beauty of the pattern that appeared when the rouge was lifted (sensory evaluation), and rated each on a 5-point scale as follows: <Evaluation criteria> (Score) :(Evaluation) 5: The pattern outline is clear and very beautiful 4: The pattern outline is clear and beautiful 3: A slightly beautiful pattern 2: The pattern outline is not clear and beautiful. 1: The pattern outline is not very clear and beautiful. (Judgment): (Average score) AA: Average rating of 4.5 or above - 5.0 A: Average score is between 4.0 and 4.5 B: Average score is between 3.5 and 4.0 C: Average score is between 2.5 and 3.5 D: Average score less than 2.5

[0163] <Example 1: Test Examples 1 to 60>

[0164] [Table 1]

[0165] [Table 2]

[0166] [Table 3]

[0167] [Table 4]

[0168] Example 2: Formulation Test Examples 1 to 13

[0169] [Table 5]

[0170] [Table 6]

[0171] *1 EPS wax by Nippon Natural Products *2 LIPWAX A-4 Nippon Natural Products *3 Refined Candelilla Wax SR-3 Nippon Natural Products *4 Amino acid gelling agent GP-1 Ajinomoto *5 Amino acid gelling agent EB-21 Ajinomoto *6 Cosmol 43V Nisshin Oillio Group *7 Pearleem 18 NOF *8 Salakos 913 Nisshin Oillio Group *9 Lisonol 24SP Koyu Alcohol Kogyo *10 KIS-1010 Sakamoto Pharmaceutical Industry *11 SILKFLO 364 LIPO CHEMICALS INC. *12 Risokasta ODSHS Koyu Alcohol Kogyo *13 Himalate DIS High-Quality Alcohol Industry *14 LIPONATE TDTM LIPO CHEMICALS INC. *15 AEROSIL R-976S Nippon Aerosil *16 KF-96L-2CS Shin-Etsu Chemical *17 Silicon KF-96A(6CS) Shin-Etsu Chemical *18 KF-96-100CS Shin-Etsu Chemical *19 KF-96-1000CS Shin-Etsu Chemical *20 Silicon SH200 (100,000 CS) Toray Dow Corning

[0172] <Manufacturing process No.1-12> A. Dissolve ingredients (1) to (21) uniformly at 100°C. B. Add components (22) to (26) to A and mix and disperse using a roll mill. The CB was melted at 100°C and poured into a mold container while stirring, and after cooling and solidifying, an oil-based cosmetic (stick lipstick) was obtained. The mold containers were of the same standard as those in Table 3: Examples 44 and 47, and as shown in FIG.

[0173] <Manufacturing process No.13> A. Dissolve ingredients (1) to (21) homogeneously at 180°C. B. Add components (22) to (26) to A and mix and disperse using a roll mill. The CB was melted at 130°C and poured into a mold container while stirring, and after cooling and solidifying, an oil-based cosmetic (stick lipstick) was obtained. The molded container was of the same standard as in Table 3: Example 47 and as shown in FIG.

[0174] <Method for measuring melt viscosity (mPa s) at 100°C> Equipment / Manufacturer: B-type rotational viscometer (Shibaura Systems Co., Ltd.) The sample at 100°C is measured using a B-type rotational viscometer (Shibaura Systems Co., Ltd.).

[0175] <Method for measuring hardness (N) of stick-type cosmetics at 35°C> Equipment / manufacturer: FUDOH rheometer manufactured by Rheotech Co., Ltd. Equipment measurement conditions: 5mmφ (diameter) jig, table speed 2cm / min, maximum value when penetrated to 2mm Filling conditions: Stick-type cosmetic product melted and filled into a jar container and left at 35°C for 1 hour The raw material composition (ingredients) was melted at 100°C and stirred while being filled into a jar. The melt was then left at 35°C for 1 hour to prepare a sample, which was then used to measure the hardness (N) of the sample using a FUDOH rheometer (manufactured by Rheotech Co., Ltd.) under the following conditions: 5mm diameter jig, table speed 2cm / min, maximum value when the sample penetrated 2mm. [Explanation of symbols]

[0176] 1 convex three-dimensional pattern; 2 convex portion; 3 linear groove; 4 surface height reference; 5 groove bottom of linear groove; 6 upper surface of convex portion; SL surface height reference line; D depth of linear groove; H height of convex portion; 10 stick-type cosmetic; 20 container for stick-type cosmetic; 30 bulk (contents of cosmetic); 50 mold; 51: concave three-dimensional pattern (concave three-dimensional pattern on mold surface); 52 recess (recess on mold surface); 53 protrusion (protrusion on mold surface); 54 mold surface; 58 remaining air bubbles

Claims

1. The surface has one or more convex three-dimensional patterns that protrude above the surface height reference line, the protruding three-dimensional pattern has one or more linear grooves, The linear grooves are present between adjacent convex portions. Stick-type cosmetics.

2. The stick-type cosmetic preparation comprises the following components (A) and (B): (A) Oily gelling agent (B) an oil agent that is liquid at 25°C; 2. The stick-type cosmetic preparation according to claim 1, which has at least the following properties:

3. 3. The stick-type cosmetic according to claim 1, wherein the ratio of the depth of the linear groove to the height of one convex portion adjacent to the linear groove that protrudes above the surface height reference line, i.e., [depth of linear groove] / [height of one convex portion adjacent to linear groove], is 50 to 150%.

4. 3. The stick-type cosmetic according to claim 1, wherein the linear direction of the linear grooves has a portion that is non-parallel to the longitudinal direction of the stick-type cosmetic when viewed from a direction perpendicular to the longitudinal direction of the stick-type cosmetic.

5. 3. The stick-type cosmetic according to claim 1, wherein the stick-type cosmetic has a hardness of 300 N to 1500 N at 35°C.

6. 3. The stick-type cosmetic according to claim 1, wherein the melt viscosity of the stick-type cosmetic at 100°C is 1 to 1,000 mPa·s.

7. 3. The stick-type cosmetic preparation according to claim 1, wherein the component (A) comprises a wax and / or an amino acid-based gelling agent.

8. 3. The stick-type cosmetic preparation according to claim 1, wherein the component (B) comprises a silicone oil.

9. 9. The stick-type cosmetic preparation according to claim 8, wherein the silicone oil is dimethylpolysiloxane.

10. The kinematic viscosity (25°C) of the silicone oil is 6 to 1000 mm ２ The stick-type cosmetic preparation according to claim 8, wherein the total amount of the component (a) and component (b) is 1 to 50 wt.

11. 9. The stick-type cosmetic according to claim 8, wherein the content of the silicone oil in the stick-type cosmetic is 0.1 to 5% by mass.

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